GB548581A - Protection device for high-frequency electrical transmitters - Google Patents

Protection device for high-frequency electrical transmitters

Info

Publication number
GB548581A
GB548581A GB927141A GB927141A GB548581A GB 548581 A GB548581 A GB 548581A GB 927141 A GB927141 A GB 927141A GB 927141 A GB927141 A GB 927141A GB 548581 A GB548581 A GB 548581A
Authority
GB
United Kingdom
Prior art keywords
supplies
protection device
amplifiers
frequency electrical
amplifier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB927141A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB927141A priority Critical patent/GB548581A/en
Publication of GB548581A publication Critical patent/GB548581A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
    • H03F1/548—Protection of anode or grid circuit against overload

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

548,581. Valve amplifying circuits. McLEAN, F. C. July 22, 1941, No. 9271. [Class 40 (v)] High-frequency amplifiers T1, T, connected in parallel and operating with separate HT supplies HT2, HT3 are disconnected from the drive oscillator DU when any of the HT supplies fail. An amplifier A interposed between the oscillator and the output amplifiers is maintained operative by voltages derived from the supplies of HT1, HT2, and is blocked should these supplies fail. The amplifier A may comprise two screen-grid valves in cascade, one having its anode and screen-grid voltages supplied from a potentiometer across the source HT2, and the other from a similar potentiometer across the source HT3. An arrangement utilizing three or more parallel-connected amplifiers is described.
GB927141A 1941-07-22 1941-07-22 Protection device for high-frequency electrical transmitters Expired GB548581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB927141A GB548581A (en) 1941-07-22 1941-07-22 Protection device for high-frequency electrical transmitters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB927141A GB548581A (en) 1941-07-22 1941-07-22 Protection device for high-frequency electrical transmitters

Publications (1)

Publication Number Publication Date
GB548581A true GB548581A (en) 1942-10-15

Family

ID=9868755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB927141A Expired GB548581A (en) 1941-07-22 1941-07-22 Protection device for high-frequency electrical transmitters

Country Status (1)

Country Link
GB (1) GB548581A (en)

Similar Documents

Publication Publication Date Title
GB533626A (en) Electron discharge device amplifying circuits
GB548581A (en) Protection device for high-frequency electrical transmitters
GB586138A (en) Improvements in or relating to electron discharge valve amplifiers
GB559078A (en) Improvements in or relating to thermionic valve amplifying circuits
GB662677A (en) Phase inverter system
GB653099A (en) Improvements in and relating to valve amplifiers
GB650445A (en) Improvements in or relating to television circuit arrangements
GB492407A (en) Improvements in or relating to electric amplifiers
US2293449A (en) Amplifier circuit
GB440612A (en) Improvements in or relating to electron discharge device amplifiers
GB672373A (en) Improvements in or relating to thermionic valve circuit arrangements
GB664341A (en) Improvements in or relating to electronic discharge-tube amplifiers
US2515224A (en) Protective device for vacuum tubes
GB490347A (en) Improvements in or relating to amplifying systems
GB717055A (en) Improvements in or relating to electronic valve circuits
GB516697A (en) Improvements in or relating to wave amplifying systems
GB623746A (en) Improvements in or relating to electronic tube amplifiers
GB539859A (en) Improvements in or relating to thermionic amplifiers
GB560906A (en) Protecting arrangements for thermionic valve circuits
GB619784A (en) Improvements in or relating to circuit-arrangements for the amplification of high-frequency electrical oscillations
GB553967A (en) Improvements in or relating to radio frequency circuit arrangements comprising amplifiers feeding into a common load, for example, a radiating antenna
GB657747A (en) Improvements in or relating to valve amplifiers
GB555491A (en) Improvements relating to tone control arrangements for radio receivers
GB856000A (en) Improvements in and relating to the neutralization of thermionic amplifiers
GB541391A (en) Improvements in push-pull valve amplifiers with negative feed-back